Improved concrete pavement



UNITED STATES PATENT OFFICEQ IMPROVED CONCRETE PAVEMENT.

Specification forming part of Letters Patent No. 42,589, dated May 3, 1864.

To all whom it may concern:

Be it known that I, HENRY MEYERS, of Hyde Park,in the county of Luzerne and State of Pennsylvania, have invented a new and Improved Concrete Pavement; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to acom position which is particularly applicable to sidewalks, cellarfloors, &c., and is mixed together of sawdust, pulverized clay, coaLashes, sand, and coal-tar,

and spread on a foundation prepared of iron slag, cinders, coarse gravel, or other indestructible material cemented together by coaltar.

To enable others skilled in the art to make and use my invention, I will proceed to describe it.

In putting down a pavement I first prepare the foundation, about three inches thick,ofiron slag, cindcrs, coarse gravel, or some other suitable indestructive material, which is rendered solid by rolling with a heavy roller or by stamping. I then sprinkleit over with coal-tar, in order that the superincumbent composition may firmly unite With it.

The composition consists of sawdust, one part; pulverized clay, two parts; coal-ashes, two parts; sand, three parts. These ingre dients are intimately mixed with each other, and with a sufficient quantity of coal-tar to make a stifl" mortar, and this mixture I spread on the foundation about two inches thick, more or less, and finally I add a light covering of my composition in a dry state-thatis, without being mixed with coal-tar. Finally, 1 roll or stamp the whole until it is sufficiently hard.

This composition, when properly prepared and applied, as above described, produces a pavement which is very durable and quite impervious to water. It is peculiarly applicable .to sidewalks, cellar-floors, and to such places in general where a dry hard floor or covering is desired. It can be made cheap and with comparatively little labor, and it resists all changes of the weather.

What I claim as my invention, and desire to secure by Letters Patent, is-

A concrete pavement composed of the ingredients above specified, and mixed together in about the proportion set forth, in combination with the foundation prepared as described.

HENRY MEYERS. Witnesses:

T. J. LUCE, I. H. MILLSPAUGH. 

